baber/WOPTO huggingface dataset:
Patent GB-1294773-A (GB)
Title: Improvements relating to gabions
IPC: E02D29/02
Filed: 1971-04-19
Abstract: 1294773 Making gabions OFFICINE MACCAFERRI SpA 19 April 1971 [10 April 1970] 41511/71 Divided out of 1294772 Heading E1H The Specification again discloses the construction of the gabion illustrated in Figs. 1 to 5 of Specification 1294772 but also indicates that the intermediate compartment defining partition walls may be formed by stitching the edges of separate flat wire mesh sheets to a flat base sheet which has been bent to provide the gabion side and end walls.
Patent GB-1501942-A (GB)
Title: Cleansing composition
IPC: C11D3/14
Filed: 1975-10-10
Abstract: The cleansing action of handwashing pastes containing an anhydrous reducing agent, an anhydrous wetting agent and ground pumice can be considerably increased when they are mixed with granulated sodium perborate, which is coated with silicone oil, as oxidising agent.
Patent GB-900407-A (GB)
Title: Improvements in air cooled vapor condensers
Inventor: ROSE WERNER
IPC: F28B1/06
Filed: 1958-12-24
Abstract: An air cooled condenser particularly for condensing <PICT:0900407/III/1> vapours having a high solidifying point (e.g. heavy hydrocarbons) comprises at least one condenser unit (4a or 4b) in which vapour and condensate flow downwards, connected in series with at least one reflux condenser (8a or 8b) in which the remaining condensible vapour is condensed and from which the non-condensible gases are withdrawn, the reflux condenser being disposed downstream of the main condenser with respect to the direction X of cooling-air flow thereover.  The reflux condenser is preferably of smaller surface area than the main condenser and in addition is traversed by relatively warm air.  Overcooling of the reflux condenser surfaces with consequent deposition of solid matter thereon from the medium being condensed is thereby prevented.  Fig. 2 shows one arrangement in which in the finned tube groups 4a 4b the bulk of the vapour from a conduit 1 is condensed and collected in headers 6a 6b which serve also to direct uncondensed vapour into the finned tube groups 8a 8b. Condensate formed in the reflux condenser tubes 8a 8b runs back into the headers 6a 6b and non-condensible gases are collected in upper headers 10a 10b. Cooling air is directed by a fan 14 over the tubes in the direction X.  The condensing process may be controlled by regulation of the fan motor or of the vacuum pump which effects removal of the non-condensible gases.
Patent GB-1218961-A (GB)
Title: Improvements in or relating to piezoelectric ceramics
Inventor: TSUBOUCHI NORIO
IPC: C04B35/50
Filed: 1968-09-03
Abstract: 1,218,961. Piezoelectric ceramics. NIPPON ELECTRIC CO. Ltd. 3 Sept., 1968, No. 41762/68. Heading C1J. In the ternary system Pb(Mn 2/3 W 1/3 )O 3 - PbTiO 3 -PbZrO 3 , wherein up to 25 atom per cent of the Pb may be replaced by at least one of Ca, Ba and Sr, those compositions falling within the area ABCDE shown in Fig. 1 have outstanding piezo-electric properties. Some HfO 2  may be present in the ZrO 2  used to make the composition.
Patent GB-1463228-A (GB)
Title: Indole derivative
IPC: C07D209/08
Filed: 1975-10-13
Abstract: 1463228 1 - Vinyl - 4,5,6,7 - tetrahydroindole IRKUT-INST ORGANICHE KHIM SIBIRSK OTDELENIA AKAD NAUK SSSR 13 Oct 1975 41794/75 Heading C2C The invention comprises 1-vinyl-4,5,6,7-tetrahydroindole of Formula I The compound of Formula I may be prepared by reacting cyclo hexanone oxime with acetylene in a molar ratio therebetween of from 1 : 2 to 1 : 5 respectively at a temperature of from 70‹ to 170‹ C. in the presence of a basic catalyst in an amount of from 1 to 50% by weight based on the amount of cyclohexanone oxime and in at least one polar solvent or in a mixture of at least one polar solvent and at least one non- polar solvent taken in a volumetric ratio of polar solvent to cyclohexanone oxime of 1 to 25 : 1 to 10 respectively to form a reaction mixture containing the desired product.
Patent GB-1355332-A (GB)
Title: Process for preparing metallised insulating substrates
IPC: C23C18/20
Filed: 1970-02-18
Abstract: 1355332 Coating with metal FORMICA INTERNATIONAL Ltd 19 April 1971 [18 Feb 1970 17 Feb 1971] 41904/73 and 41903/73 Divided out of 1355331 Heading C7F [Also in Division H1] A process for preparing an insulating substrate having adhered thereto a metallic layer or pattern of e.g. copper in which process a fibrous sheet of e.g. paper, cotton or glass is treated with a synthetic rubber composition comprising a mixture of (1) a selectively or uniformly etchable rubber  polymer and optionally a volatile medium, and (2) a thermo-settable resin, and the treated sheet or web is heated under pressure to cure the thermosettable resin and to remove any residual volatile medium present, thereby providing on the surface of the substrate a selectively etchable rubber composition, etching a surface of the substrate and then forming on the surface of the substrate a metallic layer or pattern. Suitable thermosettable resins are phenol-formaldehyde, ureaformaldehyde, melamine-formaldehyde, methacrylic, polyesters and epoxy resins. Suitable synthetic rubbers are butadiene and neoprene polymers, such as acrylonitrile-butadiene-styrene terpolymers or acrylonitrile-butadiene or butadiene-styrene copolymers. Suitable etchants are chromium dioxide in water, sulphuric acid or sulphuric-phosphoric acid mixtures and potassium dichromate in sulphuric acid. The metal coating may be a pattern formed by printing with a conductive ink and then either chemically or electrolytically depositing conductive metal on to the pattern. In a third process a thin continuous sheet of metal is formed by electro-less deposition on one or more surfaces of the insulating substrate and a negative pattern of the desired circuit is then formed in an insulating resist on the metal sheet which is then electro-plated. After electro-plating to the desired thickness in those areas not covered with the resist, the resist pattern is removed and the metal-bearing insulating substrate is controllably etched whereby those areas of the electrolessly deposited metal not covered with electroplated metal are removed to leave the printed circuit.
Patent GB-1478687-A (GB)
Title: Method and a device for the rapid deposition of oxydes in thin layers
IPC: C08J7/06
Filed: 1974-09-26
Abstract: 1478687 Vapour depositing oxides on to plastics substrates COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 26 Sept 1974 [28 Sept 1973] 41921/74 Heading C7F  In an apparatus of the kind described in Specification 1356769 for evaporating oxides e.g. silica, or oxides of Cr, Sn, In, from the walls of a cavity 2 on to plastics substrates 29 by means of a plasma the distance between the substrates and the oriface of the cavity is several times the diameter of the cavity. Oxygen is supplied through a tube 14.
Patent GB-1236351-A (GB)
Title: Apparatus for setting a speed dependent switching operation in course-recorders
IPC: G01P1/11
Filed: 1969-08-22
Abstract: 1,236,351. Speed-responsive switches.- KIENZLE APPARATE G.m.b.H. 22 Aug., 1969 [6 Sept., 1968], No. 42000/69. Heading H1N. An electrical contact device for speed indicators and recorders, which device can be set to give a warning signal at a preselectable speed, comprises an insulating plate 16 carrying contact springs 14, 15, interacting with a contact path 13 rigidly connected with a wheel 3 rotatable in accordance with the speed to be recorded and indicated, the plate 16 being adjustable via a friction connection provided by a bent wire spring 19. Plate 16 rotatably rests via its attachment 17 on the extended free end 18 of a shaft 12, on which wheel 3 is rotatably mounted, friction between plate 16 and shaft extension 18 being provided by the bent spring 19, of which one arm rests against pins 20, 20<SP>1</SP>, of the plate 16 while the other arm passes through a radial incision in the attachment 17 and engages an annular groove 21 in shaft 12. The conductors for the warning circuit are printed conducting paths 22, 23 on the recorder cover 24 and are connected via contact springs 31, 32, with the displaceable contact springs 14, 15. The warning device is optical or acoustic. Speeds are shown on an adjustment scale 30 on plate 16 visible through a window 29 in cover 24. An aperture 27 allows for adjustment of plate 16 via a slot 28 in attachment 17.
Patent GB-1099464-A (GB)
Title: Composition of matter convertible to stable metallic form by hydrogen reduction
Inventor: LINGWOOD ROBERT NEVIL GARROD
IPC: C22B5/12
Filed: 1963-10-24
Abstract: <PICT:1099464/C6-C7/1> A composition convertible to a stable metallic form by hydrogen reduction at less than the melting temperature of the metal comprises a mixture of a compound of iron, cobalt or nickel with at least 20% by weight of the metal content in the form of a chloride of the metal.  If the metal is iron, a trace amount of an element e.g. Ca, S, Na, or V, may be added to maintain the structural integrity of the reduced metallic mass.  Prior to reduction, the composition may be compacted to form pellets using the chloride as a binder. The composition may be passed in countercurrent to the hydrogen for reduction (see Fig. 1), through a zone of dehydration with spent hydrogen e.g. tower 19, a zone of partial reduction with partially spent hydrogen and then a zone of final reduction with fresh, hot hydrogen supplied at 17.  The apparatus comprises dehydration tower (19), a perforate conveyer (11), passing through the reduction zones and means for introduction of hydrogen (17), direction thereof into dehydration tower (42) and removal (20), regeneration (21) and heating (22) thereof.  The spent hydrogen is regenerated by absorbing the HCl content thereof in a metal chloride solution, thereby precipitating metal chloride crystals.ALSO:<PICT:1099464/C1/1> A composition convertible to a stable metallic form by hydrogen reduction at less than the melting temperature of the metal comprises a mixture of a compound of iron, cobalt or nickel with at least 20% by wt. of the metal content in the form of a chloride of the metal.  If the metal is iron, a trace amount of an element, e.g. Ca, S, Na or V, may be added to maintain the structural integrity of the reduced metallic mass. Prior to reduction, the composition may be compacted to form pellets using the chloride as a binder.  The composition may be passed in countercurrent to the hydrogen for reduction (see Fig. 1) through a zone of dehydration with spent hydrogen, e.g. tower 19, a zone of partial reduction with partially-spent hydrogen and then a zone of final reduction with fresh, hot hydrogen, supplied at 17.  The apparatus comprises dehydration tower 19, a perforate conveyer, 11, passing through the reduction zones and means for introduction of hydrogen (17), direction thereof into dehydration tower (42) and removal (20), regeneration (21) and heating (22) thereof.  The spent hydrogen is regenerated by absorbing the HCl content thereof in a metal chloride solution, precipitating metal chloride crystals.
Patent GB-953203-A (GB)
Title: Improvements in or relating to tedders
IPC: A01D78/02
Filed: 1960-05-10
Abstract: The subject-matter of this Specification is included in Specification 953,202 but the claims differ.
Patent GB-1244861-A (GB)
Title: Electrostatic printer
Inventor: ROBINSON GENE HAROLD
IPC: G03G15/05
Filed: 1968-09-05
Abstract: 1,244,861. Electro-photographic processes. EASTMAN KODAK CO. Sept. 5, 1968 [Sept. 6, 1967], No.42329/68. Heading G2H. An electrostatic image is formed on a receiver R having an insulating surface 11 and a conductive layer 12 by placing a photo-conductive element P having a photo-conductive insulating layer 25 and a conductive backing 26 against the receiver in virtual contact therewith but having a very small air gap 34 therebetween, applying a first potential between the conductive layers sufficient to ionize air within the air gap and simultaneously exposing the photo-conductive element to a pattern of actinic radiation to cause a charge transfer to the receiver, discontining exposure of the photo-conductive element, and removing charge on the receiver in the unexposed portions by applying a second potential of opposite polarity to the receiver of sufficient magnitude to ionize air within the air gap. The polarity of the first potential is selected to permit development of either the image or background areas with a single toner so that positive prints can be made from either a negative or positive light image pattern, and the magnitude of the second potential is sufficient to charge the areas of the receiver corresponding to the unexposed portions to a polarity opposite that of the electrostatic pattern, the first potential being preferably 1200 volts and the second 1600 volts. The receiver may be supported upon a planer conductive platen, Fig.1 (not shown) and the photo-conductive element in the form of a flexible sheet lowered on to the receiver. Alternatively, Fig.5 (not shown), a continuous process uses a conductive drum over which a photo-conductive element (p<SP>1</SP>) and a receiver sheet (R<SP>1</SP> ) are simultaneously fed together, a light image being projected through a slit at a point where both elements are in contact with each other against the drum surface. Conductive rollers having opposite potentials applied thereto contact the conductive layer of the photo-conductive element on opposite sides of the slit, and the drum is earthed.
Patent GB-1129179-A (GB)
Title: Pressure-responsive switch or transducer
Inventor: RIXON DEREK
IPC: H01H35/26
Filed: 1966-09-23
Abstract: 1,129,179. Fluid actuation of switches. DUNEDIN INSTRUMENTATION Ltd. 20 Sept., 1967 [23 Sept., 1966], No. 42477/66. Heading H1N. A pressure-responsive switch comprises a plunger 4 having axially-spaced faces of which one face is arranged to be acted upon by the fluid pressure and the other face 5 forms a movable contact of a pair 5, 7, of contacts or is arranged to engage a movable contact, and a pair of springs 11, 15 opposing the contactclosing movement of plunger 4, spring 11 acting before spring 15, the stiffness of spring 11 being such that as the fluid pressure increases plunger 4 moves in the contact-closing direction against the force of spring 11 until spring 15 begins to exert a force to oppose its further movement, the combined force of both springs being greater than that corresponding to the maximum fluid pressure to which the plunger is subjected, to prevent any further contact-closing movement of plunger 4. Contact 7 is adjustable and the initial pressure on spring 11 is adjustable by plug 12. The combined initial length of spring 15 and collar 16 is less than that of spring 11. Bush 6 supporting fixed contact 7 is of insulating material, plunger 4 and housing 1 may be of steel or other metal to provide a conducting path. If plunger 4 is of electrically non-conductive material or is insulated from housing 1 an intermediate contact may be provided between fixed contact 7 and plunger 4.
Patent GB-1077776-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B9/54
Filed: 1964-10-19
Abstract: A sinker cam (26) is resiliently urged by a coil spring (33) in an inward direction to cause the sinkers to adopt an advanced position during the clearing and initial drawing movement of the needles, Fig. 2 and 6 (not shown).  A similar sinker cam is provided at each feed of a multifeed machine.
Patent GB-924465-A (GB)
Title: Improvements in and relating to foams
IPC: C04B38/02
Filed: 1961-11-29
Abstract: Foamed silicon nitride is produced by reacting excess finely divided silicon powder (e.g. of pure silicon or a high silicon alloy such as ferrosilicon) having an oxidic film on the particles with a hydrofluoric acid solution to form a foam capable of supporting at least its own weight, drying the foam, heating the foam in a nitrogen atmosphere, and recovering essentially pure silicon nitride foam. The silicon particle size should not exceed 150 mesh Tyler screen, preferably 400 mesh.  The hydrofluoric acid concentration may vary from 1 to 100%, 1 to 20% being preferred. The dilute acid may be added to dry silicon powder, or an aqueous slurry of powder may be formed and either dilute acid or HF gas bubbled through.  Drying may be effected at room temperature or in an oven.  Nitriding may be effected in an electric furnace through which nitrogen is passed. Articles may be shaped from the foam prior to nitriding.  In an example, the acid used is 10%, the container polyethylene, and the nitriding gas 95% nitrogen, 5% hydrogen.
Patent GB-953090-A (GB)
Title: Pulse signal delay system
IPC: H03K5/13
Filed: 1960-12-12
Abstract: 953,090. Pulse circuits. STANDARD TELEPHONES & CABLES Ltd. Dec. 12, 1960 [Dec. 11, 1959], No. 42660/60. Heading H3P. The information capacity of a magnetostrictive delay line is increased by converting the information to be delayed to non-return-tozero form before entry into the delay line. As described, a source 1 supplies binary data in a form in which a " 1 " is represented by a pulse and a " 0 " by no pulse, the information word 1101 being shown as train A, Fig. 2. This train is applied to a bistable flip-flop 2 to produce a train B which is applied to a magnetostrictive delay line 3, the output C of which is applied to a read-out circuit 4. In the circuit 4 the train C is inverted at 5 and delayed by one pulse time T at 6 to produce output trains D, E which are each applied to peak and base clippers. The outputs of the base clippers are applied to an AND gate 11 and of the peak clippers to a negative AND gate 12 whose output is inverted at 14 and applied, together with the output of the gate 11 to an OR gate 13 whose output is sampled at 15 under the control of a clock source 16 operating at the pulse periodicity T to produce a final output Q representing the delayed original input A.
Patent GB-1528034-A (GB)
Title: Method of testing ratio direction finding stations with adcock antennae systems
IPC: G01S3/02
Filed: 1975-10-20
Abstract: 1528034 Testing direction finding apparatus LICENTIA PATENT VERWALTUNGS GmbH 20 Oct 1975 [31 Oct 1974] 43022/75 Heading H4D An Adcock direction finding system comprising a circular array of antennae is tested by positioning a test antenna at the array centre and transmitting therefrom a HF test signal which is received by respective Adcock pairs of antennae in the array and analysed by the associated direction finding circuitry whereby imbalances and faults in the Adcock systems may be located. Antennae 1-8, Fig. 1, are utilized in pairs of diametrically opposed elements the signals from which as received from antenna 9 energized by transmitter 10, are fed to Adcock processing unit 11, from which output signals U H , U OW  and U NS  which are respectively, the total of the sum voltages produced by each Adcock pair, U NS  # U.sinα, U  OW #U.cosα where U is the sum of the Adcock pair difference voltages for a received signal at a bearing angle of α. A test device 12 is interposed in the circuit connecting these output signals to a directional receiver 16 by which the direction of the received signal is measured. Device 12 includes a plurality of ganged switches, S1-S6 which permit, in one position, normal operation of the system, and in another position, feed signals U H , U OW , U NS  through summer 13 and power dividers 14 and 15, as illustrated, whereby if, under normal operation, U OW  # U NS  # O, the total voltage U H  is split by divider 14 and then further split equally into outputs El and E2 producing a 45 degree bearing angle in the receiver 16. Under fault conditions, the equal strength signal received at each antenna, is for example attenuated in one channel, say 7', and therefore difference signals U OW  and U NS  are an order of magnitude of U H , whereby a bearing angle differing from 45 degrees is obtained in receiver 16 due to differing values of voltages El and E2. The faulty part of the system may then be detected by systematically removing from circuit, individual parts of the system. A second embodiment is also described.
Patent GB-880404-A (GB)
Title: Improvements in apparatus for disinfecting buildings
IPC: A61L2/20
Filed: 1959-12-18
Abstract: 880,404. Disinfecting apparatus. PFEFFERKORN, C. W. Dec. 18, 1959 [Dec. 22, 1958], No. 43100/59. Class 81(1). A disinfecting apparatus for disinfecting buildings occupied by animals has means for directing a stream of disinfecting medium under pressure on to a heated surface whereon the disinfecting medium is gasified. The surface may be heated by the burning of a gaseous or liquid fuel which is constituted at least in part of a disinfecting substance e.g. sulphur. As shown the apparatus comprises a heat treatment diffuser comprising a diffusing jet 5, a heat treatment element in the form of a cone 10 disposed beneath the diffusing jet, the point of which is directed towards the jet, and a fuel support 13 placed beneath the heat treatment element. The heat treating diffuser is fed with disinfectant from a reservoir 15 having orifices 19 for the introduction of a compressed gas from a bottle 21 into the reservoir 20 for the delivery of the disinfectant under pressure via tube 32 connected to branch 8 of the diffusing jet 5 from which it is diffused over the heating cone under which accumulate the hot gases from the combustion of fuel pastilles 14 when ignited, the volatile ingredients being liberated in the form of gases &c. and passing into the room or building. Several diffusers may be distributed throughout the building to be disinfected and connected in series by branch 9 to branch 8 of the next diffuser.
Patent GB-971407-A (GB)
Title: Improvements in resilient guiding elements for piston and cylinder assemblies
IPC: F16J1/00
Filed: 1962-11-14
Abstract: 971,407. Pistons; stuffing-boxes. VOLVO A.B. Nov. 14, 1962 [Nov. 17, 1961], No. 43105/62. Addition to 912,232. Headings F2B and F2T. In a resilient guiding element for a piston comprising segments 7 which extend axially from a central radial flange 6 to form a resilient cylindrical bearing surface as described in the parent Specification, which is referred to, the segments 7 are interconnected by the radial flange 6 only.
Patent GB-1025310-A (GB)
Title: A process for improving the bonding with rubber of polyethylene terephthalate tyre cord
IPC: D01F6/62
Filed: 1964-10-22
Abstract: The bonding of rubber to polyethylene terephthalate tyre cord is improved by treating the filaments used for the manufacture of the tyre cord or the cord yarn or fabric with an aqueous-alcoholic solution or aqueous emulsion which contains a heterocyclic or aliphatic amine and a glycidyl ether of an aliphatic alcohol having at least three OH groups of which at least two are transformed into glycidyl ether groups, heating to 160 DEG -245 DEG C. and subsequently treating the product with an aqueous dispersion of a resorcinol-formaldehyde precondensate and a vinyl-pyridine latex. The glycidyl ether may be the reaction product of epichlorohydrin with glycerine, penta-eythritol, sorbitol, 1, 2, 6-hexanetriol or trimethylolpropane and the amine may be piperazine, piperidine, pyridine, hexamethylene diamine, diisopropylamine, dicyandiamide, dimethylpiperazine or guanidine. The treated material may be heated to 160 DEG -245 DEG C. for 1-330 seconds.  The glycidyl ether and amine may be applied to the filaments prior to stretching or the cord yarn after stretching may be treated with the glycidyl ether and amine and then guided through a chamber in which slight shrinkage can occur under the action of superheated steam or hot air, a temperature of 220 DEG -245 DEG C. preferably being used to set the treating agents.  An oily or waxy finishing preparation or spooling oil may be applied simultaneously with the application of the glycidyl ether or subsequent thereto.  Alternatively the glycidyl ether and amine may be applied after cord formation to the cord yarn or fabric.